pub struct Chain<T, U> { /* private fields */ }
Expand description
Implementations§
source§impl<T, U> Chain<T, U>
impl<T, U> Chain<T, U>
1.20.0 · sourcepub fn into_inner(self) -> (T, U) ⓘ
pub fn into_inner(self) -> (T, U) ⓘ
Consumes the Chain
, returning the wrapped readers.
§Examples
use std::io;
use std::io::prelude::*;
use std::fs::File;
fn main() -> io::Result<()> {
let mut foo_file = File::open("foo.txt")?;
let mut bar_file = File::open("bar.txt")?;
let chain = foo_file.chain(bar_file);
let (foo_file, bar_file) = chain.into_inner();
Ok(())
}
1.20.0 · sourcepub fn get_ref(&self) -> (&T, &U) ⓘ
pub fn get_ref(&self) -> (&T, &U) ⓘ
Gets references to the underlying readers in this Chain
.
§Examples
use std::io;
use std::io::prelude::*;
use std::fs::File;
fn main() -> io::Result<()> {
let mut foo_file = File::open("foo.txt")?;
let mut bar_file = File::open("bar.txt")?;
let chain = foo_file.chain(bar_file);
let (foo_file, bar_file) = chain.get_ref();
Ok(())
}
1.20.0 · sourcepub fn get_mut(&mut self) -> (&mut T, &mut U) ⓘ
pub fn get_mut(&mut self) -> (&mut T, &mut U) ⓘ
Gets mutable references to the underlying readers in this Chain
.
Care should be taken to avoid modifying the internal I/O state of the
underlying readers as doing so may corrupt the internal state of this
Chain
.
§Examples
use std::io;
use std::io::prelude::*;
use std::fs::File;
fn main() -> io::Result<()> {
let mut foo_file = File::open("foo.txt")?;
let mut bar_file = File::open("bar.txt")?;
let mut chain = foo_file.chain(bar_file);
let (foo_file, bar_file) = chain.get_mut();
Ok(())
}
Trait Implementations§
1.9.0 · source§impl<T, U> BufRead for Chain<T, U>
impl<T, U> BufRead for Chain<T, U>
source§fn fill_buf(&mut self) -> Result<&[u8], Error>
fn fill_buf(&mut self) -> Result<&[u8], Error>
Returns the contents of the internal buffer, filling it with more data
from the inner reader if it is empty. Read more
source§fn consume(&mut self, amt: usize)
fn consume(&mut self, amt: usize)
Tells this buffer that
amt
bytes have been consumed from the buffer,
so they should no longer be returned in calls to read
. Read moresource§fn has_data_left(&mut self) -> Result<bool, Error>
fn has_data_left(&mut self) -> Result<bool, Error>
🔬This is a nightly-only experimental API. (
buf_read_has_data_left
)Checks if the underlying
Read
has any data left to be read. Read moresource§fn skip_until(&mut self, byte: u8) -> Result<usize, Error>
fn skip_until(&mut self, byte: u8) -> Result<usize, Error>
🔬This is a nightly-only experimental API. (
bufread_skip_until
)Skips all bytes until the delimiter
byte
or EOF is reached. Read more1.0.0 · source§fn read_line(&mut self, buf: &mut String) -> Result<usize, Error>
fn read_line(&mut self, buf: &mut String) -> Result<usize, Error>
Reads all bytes until a newline (the
0xA
byte) is reached, and append
them to the provided String
buffer. Read more1.0.0 · source§impl<T, U> Read for Chain<T, U>
impl<T, U> Read for Chain<T, U>
source§fn read(&mut self, buf: &mut [u8]) -> Result<usize, Error>
fn read(&mut self, buf: &mut [u8]) -> Result<usize, Error>
Pull some bytes from this source into the specified buffer, returning
how many bytes were read. Read more
source§fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize, Error>
fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize, Error>
Like
read
, except that it reads into a slice of buffers. Read moresource§fn is_read_vectored(&self) -> bool
fn is_read_vectored(&self) -> bool
🔬This is a nightly-only experimental API. (
can_vector
)source§fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize, Error>
fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize, Error>
Reads all bytes until EOF in this source, placing them into
buf
. Read moresource§fn read_buf(&mut self, buf: BorrowedCursor<'_>) -> Result<(), Error>
fn read_buf(&mut self, buf: BorrowedCursor<'_>) -> Result<(), Error>
🔬This is a nightly-only experimental API. (
read_buf
)Pull some bytes from this source into the specified buffer. Read more
1.0.0 · source§fn read_to_string(&mut self, buf: &mut String) -> Result<usize, Error>
fn read_to_string(&mut self, buf: &mut String) -> Result<usize, Error>
Reads all bytes until EOF in this source, appending them to
buf
. Read more1.6.0 · source§fn read_exact(&mut self, buf: &mut [u8]) -> Result<(), Error>
fn read_exact(&mut self, buf: &mut [u8]) -> Result<(), Error>
Reads the exact number of bytes required to fill
buf
. Read moresource§fn read_buf_exact(&mut self, cursor: BorrowedCursor<'_>) -> Result<(), Error>
fn read_buf_exact(&mut self, cursor: BorrowedCursor<'_>) -> Result<(), Error>
🔬This is a nightly-only experimental API. (
read_buf
)Reads the exact number of bytes required to fill
cursor
. Read more1.0.0 · source§fn by_ref(&mut self) -> &mut Selfwhere
Self: Sized,
fn by_ref(&mut self) -> &mut Selfwhere
Self: Sized,
Creates a “by reference” adaptor for this instance of
Read
. Read moreAuto Trait Implementations§
impl<T, U> Freeze for Chain<T, U>
impl<T, U> RefUnwindSafe for Chain<T, U>where
T: RefUnwindSafe,
U: RefUnwindSafe,
impl<T, U> Send for Chain<T, U>
impl<T, U> Sync for Chain<T, U>
impl<T, U> Unpin for Chain<T, U>
impl<T, U> UnwindSafe for Chain<T, U>where
T: UnwindSafe,
U: UnwindSafe,
Blanket Implementations§
source§impl<T> Also for T
impl<T> Also for T
source§impl<T, Res> Apply<Res> for Twhere
T: ?Sized,
impl<T, Res> Apply<Res> for Twhere
T: ?Sized,
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> ByteSized for T
impl<T> ByteSized for T
source§const BYTE_ALIGN: usize = _
const BYTE_ALIGN: usize = _
The alignment of this type in bytes.
source§const LITTLE_ENDIAN: bool = true
const LITTLE_ENDIAN: bool = true
True if the system’s architecture is little-endian.
source§const BIG_ENDIAN: bool = false
const BIG_ENDIAN: bool = false
True if the system’s architecture is big-endian.
source§fn byte_align(&self) -> usize ⓘ
fn byte_align(&self) -> usize ⓘ
Returns the alignment of this type in bytes.
source§impl<T> ExtAny for T
impl<T> ExtAny for T
source§fn as_any_mut(&mut self) -> &mut dyn Anywhere
Self: Sized,
fn as_any_mut(&mut self) -> &mut dyn Anywhere
Self: Sized,
source§impl<T> ExtMem for Twhere
T: ?Sized,
impl<T> ExtMem for Twhere
T: ?Sized,
source§const NEEDS_DROP: bool = _
const NEEDS_DROP: bool = _
Know whether dropping values of this type matters, in compile-time.
source§fn mem_needs_drop(&self) -> bool
fn mem_needs_drop(&self) -> bool
Returns
true
if dropping values of this type matters. Read moresource§fn mem_forget(self)where
Self: Sized,
fn mem_forget(self)where
Self: Sized,
Forgets about
self
without running its destructor. Read moresource§fn mem_replace(&mut self, other: Self) -> Selfwhere
Self: Sized,
fn mem_replace(&mut self, other: Self) -> Selfwhere
Self: Sized,
source§fn mem_as_bytes(&self) -> &[u8] ⓘ
fn mem_as_bytes(&self) -> &[u8] ⓘ
Available on crate feature
unsafe_slice
only.